Value of 123I-MIBG SPECT for the assessment of dysautonomia in patients with long COVID
IJC Heart & Vasculature,
Journal Year:
2024,
Volume and Issue:
52, P. 101413 - 101413
Published: April 26, 2024
Language: Английский
Assessment of Autonomic Nervous System Function in Patients with Chronic Fatigue Syndrome and Post-COVID-19 Syndrome Presenting with Recurrent Syncope
Journal of Clinical Medicine,
Journal Year:
2025,
Volume and Issue:
14(3), P. 811 - 811
Published: Jan. 26, 2025
Background/Objectives:
Chronic
fatigue
syndrome
and
post-COVID-19
are
associated
with
dysfunction
of
the
autonomic
nervous
system,
which
may
manifest
as
syncope
orthostatic
intolerance.
This
study
aimed
to
compare
system
function
in
patients
chronic
unknown
etiology
those
secondary
using
multiple
diagnostic
modalities,
assess
prevalence
characteristics
these
populations.
Methods:
cross-sectional
included
440
examined
at
Neurocardiological
Laboratory
Institute
for
Cardiovascular
Diseases
“Dedinje”.
Patients
were
divided
into
three
groups:
(Group
1,
n
=
210),
2,
137),
healthy
controls
3,
91).
Diagnostic
modalities
cardiovascular
reflex
tests,
head-up
tilt
test,
beat-to-beat
analysis,
24
h
Holter
electrocardiogram
monitoring,
ambulatory
blood
pressure
monitoring.
Statistical
analyses
performed
analysis
variance,
Tukey’s
honestly
significant
difference
Mann–Whitney
U
test.
Results:
Both
groups
demonstrated
compared
(p
<
0.05),
including
reduced
baroreceptor
sensitivity
impaired
heart
rate
variability
parameters.
Syncope
was
high
both
groups,
extreme
observed
45–47%
during
exhibited
greater
increases
test
than
0.05).
Conclusions:
syndrome,
irrespective
etiology,
exhibit
a
syncope.
Post-COVID-19
demonstrates
distinct
hemodynamic
patterns,
suggesting
unique
pathophysiological
mechanisms
that
warrant
further
investigation.
Language: Английский
A model-based spectral directional approach reveals the long-term impact of COVID-19 on cardiorespiratory control and baroreflex
BioMedical Engineering OnLine,
Journal Year:
2025,
Volume and Issue:
24(1)
Published: Feb. 3, 2025
Abstract
Background
Coronavirus
disease
19
(COVID-19)
patients
might
develop
sequelae
after
apparent
resolution
of
the
infection.
Autonomic
dysfunction
and
baroreflex
failure
have
been
frequently
reported.
However,
long-term
effect
COVID-19
on
cardiorespiratory
cardiovascular
neural
controls
has
not
investigated
with
directional
approaches
able
to
open
closed-loop
relationship
between
physiological
variables.
Methods
A
model-based
causal
spectral
approach,
namely
squared
coherence
(CK
2
),
was
applied
beat-to-beat
variability
series
heart
period
(HP)
systolic
arterial
pressure
(SAP),
respiratory
signal
(RESP)
acquired
at
rest
in
supine
position
during
active
standing
(STAND)
survivors
9
months
their
hospital
discharge.
Patients
were
categorized
according
need
ventilatory
support
hospitalization
as
individuals
that
had
no
continuous
positive
airway
(noCPAP,
n
=
27),
sub-intensive
care
unit
(CPAP,
14)
invasive
mechanical
ventilation
intensive
(IMV,
8).
Results
The
expected
decrease
strength
HP-RESP
dynamic
interactions
well
increase
dependence
HP
SAP
along
STAND
observed
this
result
held
regardless
severity
disease,
noCPAP,
CPAP
IMV
cohorts.
Regardless
experimental
condition,
causality
markers
did
vary
across
groups
either.
Conclusions
CK
markers,
association
an
orthostatic
challenge,
characterize
impairment
control
long
acute
infection
could
be
exploited
monitor
evolution
Language: Английский
Exaggerated blood pressure elevation in response to orthostatic challenge, a post-acute sequelae of SARS-CoV-2 infection (PASC) after hospitalization
Autonomic Neuroscience,
Journal Year:
2023,
Volume and Issue:
247, P. 103094 - 103094
Published: April 22, 2023
Language: Английский
Trajectories of functional and structural myocardial parameters in post-COVID-19 syndrome—insights from mid-term follow-up by cardiovascular magnetic resonance
Jan Gröschel,
No information about this author
Leonhard Grassow,
No information about this author
Phillip van Dijck
No information about this author
et al.
Frontiers in Cardiovascular Medicine,
Journal Year:
2024,
Volume and Issue:
11
Published: April 2, 2024
Introduction
Myocardial
tissue
alterations
in
patients
with
post-Coronavirus
disease
2019
syndrome
(PCS)
are
often
subtle
and
mild.
Reports
vary
the
prevalence
of
non-ischemic
ischemic
injuries
as
well
extent
ongoing
myocardial
inflammation.
The
exact
relevance
these
is
not
fully
understood.
This
study
aimed
at
describing
trajectories
PCS
by
mid-term
follow-up
cardiovascular
magnetic
resonance
(CMR).
Methods
entails
a
retrospective
analysis
symptomatic
referred
for
CMR
between
August
2020
May
2023
due
to
mildly
affected
or
reduced
left
right
ventricular
function
(LV
RV,
respectively)
structural
alterations,
e.g.,
focal
diffuse
fibrosis,
on
baseline
scans.
Follow-up
protocol
consisted
cine
images
full
coverage
native
T1
T2
mapping.
Baseline
scans
were
compared
using
t
-tests
Wilcoxon
tests.
Post-hoc
was
carried
out
subgroup
based
change
LV
stroke
volume
(SV)
Results
In
total,
43
[median
age
(interquartile
range)
46
(37–56)
years,
33
women]
received
follow-ups
347
(167–651)
days
after
initial
diagnosis.
A
decrease
symptoms
recorded
(
p
<
0.03)
23
being
asymptomatic
[symptomatic
43/43
(100%)
vs.
21/43
(49%),
0.001].
Functional
improvement
noted
LV-SV
[83.3
(72.7–95.0)
84.0
(77.0–100.3)
ml;
=
0.045],
global
radial
[25.3%
(23.4%–27.9%)
27.4%
(24.4%–33.1%);
0.001],
circumferential
strains
[−16.5%
(−17.5%
−15.6%)
−17.2%
(−19.5%
−16.1%);
17
had
an
>10%
(5
12
increase),
LV-SV,
RV-SV,
longitudinal
strain
discriminatory
variables
0.01,
0.02,
0.04,
respectively).
T1-
T2-analysis
revealed
no
changes,
remaining
within
normal
limits.
Conclusion
Symptomatic
load
blood
pressures
decreased
follow-up.
did
detect
significant
changes
parameters;
however,
volumetric,
specifically
deformation
indexes
improved
during
Language: Английский